Which is the default for basically all of this (or at least it should be). I'm also using the Ace defaults (which I automatically ported to MV using the RGSS translator that comes with the latter as I do all my dungeon generator sessions in Ace since the MV version seems rather... lacking, in terms of comparison). Recently when I completely wiped away all my work on the original version of my project and started over from "the dawn of the first day" there was a period of time when I didn't have sounds or state icons set properly, and so I ended up removing them all. Big mistake: I basically had to pay attention to every single line of the battle log (and I'm using the Yanfly core myself) and if a specific case doesn't fit the item (let's say it's for treating a venom wound) the game would buzz my ears until I directed treatment to the correct party member.
Obviously having a venom wound is nowhere near as obvious as a complete knockout when you don't have your state icons set properly, but the circumstance is the same. In short, you want the game to buzz for active party members but not for those who have been knocked out. Or at least that's how it's supposed to work, so that you don't needlessly provide treatment for the wrong condition.